978 resultados para COMP


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Os papeis de homens e mulheres na sociedade contemporânea têm sido reestruturados, assim como a própria noção das estruturas familiares se renova. Algumas marcas estão atentas a essas mudanças e, no contexto mercadológico, fica evidente que os consumidores são diversos, com novas demandas e expectativas pelo reconhecimento dessa diversidade. Esta dissertação discute a mudança de abordagem na representação da família, demonstrando suas mutações de papeis na publicidade, esta vista como um produto sociocultural. Para tanto foi desenvolvida uma pesquisa qualitativa subsidiada pela análise de discurso de linha francesa. Primeiramente, o estudo qualitativo se desenvolve a partir de uma abordagem bibliográfica e documental e uma parte empírica de análise de discurso de campanhas publicitárias dos últimos anos, selecionadas a partir de seu foco nas representações familiares contemporâneas, de marcas que as tratem com naturalidade e demonstrem aceitar essas transições, buscando-as através da análise de casos múltiplos de amostras intencionais os avanços quando se trata dos modelos familiares, elementos que se desviam de representação conservadora da família. Demonstrou-se que há uma tendência de algumas marcas reforçarem qual é o público que desejam atingir através de suas construções discursivas que apontam para o reconhecimento das famílias reconstituídas, para a adoção e para a homo e monoparentalidade, ou seja, para a confirmação da existência dos variados tipos de família.

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As condições inadequadas vivenciadas nas organizações afligem não só os trabalhadores da iniciativa privada, pois são igualmente encontradas no segmento estatal, contrariando a expectativa de que o aparato governamental eliminaria as condições insalubres e criaria outras melhores nas quais prevalecesse à promoção de saúde. Diante desse panorama questionou-se porque, uma vez que, pelo menos do ponto de vista da sociedade leiga, esses servidores estão submetidos a condições privilegiadas de trabalho. O presente estudo objetivou identificar e descrever possíveis relações entre o clima organizacional e o burnout em servidores públicos de uma instituição federal de ensino. Objetivou-se ainda descrever o clima organizacional predominante. A pesquisa realizada teve cunho quantitativo, tipo estudo de caso e exploratória. A coleta de dados deu-se por meio das escalas ECO (escala de clima organizacional), ECB (escala de caracterização do burnout) e um questionário sociodemográfico, todos os instrumentos autoaplicáveis eletronicamente disponíveis à instituição. Participaram do estudo 201 servidores públicos federais, com idade média de 37 anos, majoritariamente de nível superior e casados. Os resultados revelaram que cerca de um quarto dos participantes raramente experimentaram burnout, no entanto outra quarta parte deles frequentemente experimentaram altos níveis de burnout, resultado bastante expressivo. Os servidores perceberam clima organizacional mediano, destacando-se a boa coesão entre os colegas de trabalho e a percepção de baixa recompensa. Merece destaque a grande dispersão entre as percepções de clima, o que permite inferir haver subclimas não identificados nesta investigação, possivelmente ocasionados por uma força de clima fraca e pela participação dos servidores de unidades de ensino geograficamente distintas, geridas por gestores locais com relativa autonomia. Os resultados dos cálculos de correlação revelaram que, quanto menos os participantes percebem apoio da chefia e da organização, coesão entre colegas, e mais controle/pressão, mais exaustos se sentem, mais desumanizam as pessoas com quem tratam e mais se decepcionam no trabalho e vice-versa. Conforto físico menor está associado a maior desumanização e a mais decepção no trabalho e vice-versa; e que controle/pressão, relaciona-se positiva e fracamente com desumanização e vice-versa. Desta forma, a hipótese de que existe associação entre burnout e clima organizacional foi confirmada. Os resultados também revelaram que os servidores com burnout, perceberam pior clima organizacional que os seus pares sem burnout, confirmando a segunda hipótese. Esses servidores também se mostraram neutros quanto à percepção de apoio da chefia e conforto físico; não percebem controle pressão, nem recompensa; todavia percebem coesão entre os colegas. Esses resultados sugerem que os participantes têm se apoiado nessas relações para suportar a indiferença e ausência de estímulos experimentados no trabalho. Os resultados obtidos nesse estudo permitiram concluir que o clima organizacional é fraco, provavelmente influenciado por uma cultura organizacional fraca, explicando a heterogeneidade da percepção do clima organizacional pelos servidores. Além disso, embora haja burnout entre poucos participantes, há que se atentar que cerca de um quarto deles, encontra-se acometido desta síndrome e isto poderá contagiar os demais.

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A high resolution, second-order central difference method for incompressible flows is presented. The method is based on a recent second-order extension of the classic Lax–Friedrichs scheme introduced for hyperbolic conservation laws (Nessyahu H. & Tadmor E. (1990) J. Comp. Physics. 87, 408-463; Jiang G.-S. & Tadmor E. (1996) UCLA CAM Report 96-36, SIAM J. Sci. Comput., in press) and augmented by a new discrete Hodge projection. The projection is exact, yet the discrete Laplacian operator retains a compact stencil. The scheme is fast, easy to implement, and readily generalizable. Its performance was tested on the standard periodic double shear-layer problem; no spurious vorticity patterns appear when the flow is underresolved. A short discussion of numerical boundary conditions is also given, along with a numerical example.

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Rap phosphatases are a recently discovered family of protein aspartate phosphatases that dephosphorylate the Spo0F--P intermediate of the phosphorelay, thus preventing sporulation of Bacillus subtilis. They are regulators induced by physiological processes that are antithetical to sporulation. The RapA phosphatase is induced by the ComP-ComA two-component signal transduction system responsible for initiating competence. RapA phosphatase activity was found to be controlled by a small protein, PhrA, encoded on the same transcript as RapA. PhrA resembles secreted proteins and the evidence suggests that it is cleaved by signal peptidase I and a 19-residue C-terminal domain is secreted from the cell. The sporulation deficiency caused by the uncontrolled RapA activity of a phrA mutant can be complemented by synthetic peptides comprising the last six or more of the C-terminal residues of PhrA. Whether the peptide controls RapA activity directly or by regulating its synthesis remains to be determined. Complementation of the phrA mutant can also be obtained in mixed cultures with a wild-type strain, suggesting the peptide may serve as a means of communication between cells. Importation of the secreted peptide required the oligopeptide transport system. The sporulation deficiency of oligopeptide transport mutants can be suppressed by mutating the rapA and rapB genes or by introduction of a spo0F mutation Y13S that renders the protein insensitive to Rap phosphatases. The data indicate that the sporulation deficiency of oligopeptide transport mutants is due to their inability to import the peptides controlling Rap phosphatases.

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The exponential growth of the subjective information in the framework of the Web 2.0 has led to the need to create Natural Language Processing tools able to analyse and process such data for multiple practical applications. They require training on specifically annotated corpora, whose level of detail must be fine enough to capture the phenomena involved. This paper presents EmotiBlog – a fine-grained annotation scheme for subjectivity. We show the manner in which it is built and demonstrate the benefits it brings to the systems using it for training, through the experiments we carried out on opinion mining and emotion detection. We employ corpora of different textual genres –a set of annotated reported speech extracted from news articles, the set of news titles annotated with polarity and emotion from the SemEval 2007 (Task 14) and ISEAR, a corpus of real-life self-expressed emotion. We also show how the model built from the EmotiBlog annotations can be enhanced with external resources. The results demonstrate that EmotiBlog, through its structure and annotation paradigm, offers high quality training data for systems dealing both with opinion mining, as well as emotion detection.

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The so-called parallel multisplitting nonstationary iterative Model A was introduced by Bru, Elsner, and Neumann [Linear Algebra and its Applications 103:175-192 (1988)] for solving a nonsingular linear system Ax = b using a weak nonnegative multisplitting of the first type. In this paper new results are introduced when A is a monotone matrix using a weak nonnegative multisplitting of the second type and when A is a symmetric positive definite matrix using a P -regular multisplitting. Also, nonstationary alternating iterative methods are studied. Finally, combining Model A and alternating iterative methods, two new models of parallel multisplitting nonstationary iterations are introduced. When matrix A is monotone and the multisplittings are weak nonnegative of the first or of the second type, both models lead to convergent schemes. Also, when matrix A is symmetric positive definite and the multisplittings are P -regular, the schemes are also convergent.

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La medición de la calidad de vida en las sociedades, más allá del PIB, experimenta un salto cualitativo y cuantitativo en los últimos años. El texto utiliza datos de la Encuesta General Europea para ajustar un modelo estructural de medición a datos de la sociedad española, contrastando los planteamientos psicológicos hedonistas del bienestar social.

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Population synthesis studies constitute a powerful method to reconstruct the birth distribution of periods and magnetic fields of the pulsar population. When this method is applied to populations in different wavelengths, it can break the degeneracy in the inferred properties of initial distributions that arises from single-band studies. In this context, we extend previous works to include X-ray thermal emitting pulsars within the same evolutionary model as radio-pulsars. We find that the cumulative distribution of the number of X-ray pulsars can be well reproduced by several models that, simultaneously, reproduce the characteristics of the radio-pulsar distribution. However, even considering the most favourable magneto-thermal evolution models with fast field decay, lognormal distributions of the initial magnetic field overpredict the number of visible sources with periods longer than 12 s. We then show that the problem can be solved with different distributions of magnetic field, such as a truncated lognormal distribution, or a binormal distribution with two distinct populations. We use the observational lack of isolated neutron stars (NSs) with spin periods P > 12 s to establish an upper limit to the fraction of magnetars born with B > 1015 G (less than 1 per cent). As future detections keep increasing the magnetar and high-B pulsar statistics, our approach can be used to establish a severe constraint on the maximum magnetic field at birth of NSs.

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This layer is a georeferenced raster image of the historic paper map entitled: Plan von der Stadt und Vestung Toulon nebst der umliegender Gegend, entworfen von D.F. Sotzmann ; gestochen von H. Kliewer. It was published by Simon Schropp et Comp. in 1793. Scale [ca. 1:45,859]. Covers the Toulon region, France. Map in German. The image inside the map neatline is georeferenced to the surface of the earth and fit to the European Datum 1950, Universal Transverse Mercator (UTM) Zone 31N projected coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, administrative boundaries, fortification shoreline features, and more. Relief shown pictorially and by hachures.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.

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This layer is a georeferenced raster image of the historic paper map entitled: Neuester Plan der Haupt- und Residenzstadt Wien : mit allen von Seiner Majestät allerhöchst genehmigten Verschönerungen nebst dem Glacis und Eingang in die Vorstädte mit höchster Bewilligung Sr. Kais. Hoheit des General-Genie-Directors, nach dem original Plan herausgegeben von Artaria und Comp. It was published by Artaria und Comp. in 1819. Scale [ca. 3,300]. Map in German. The image inside the map neatline is georeferenced to the surface of the earth and fit to the MGI 3-Degree Gauss Kruger coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, drainage, built-up areas and selected buildings, names of selected landowners, fortifications, parks, and more. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.

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Este trabajo tiene por objeto abordar el problema de las oraciones de relativo, en particular las oraciones de relativo con "cuyo" y con preposición en el complementante, en el marco teórico del Programa Minimalista de N. Chomsky. La particularidad de estas estructuras es que establecen una cadena estructural entre el antecedente, el SQU y su traza, lo cual las convierte en estructuras complejas. Su especificidad reside en que en las oraciones de relativo con preposición en el COMP, el SQU coteja rasgos de género y número con el antecedente, en tanto que en las oraciones de relativo con "cuyo" (forma posesiva en genitivo), este pronombre se comporta como un DET y es núcleo de un SD; el antecedente no influye en el cotejo de rasgos porque los posesivos determinan un dominio, similar al dominio de un sujeto. ;Estas cuestiones hacen a una mayor complejidad de dichas estructuras, lo cual se corrobora en que son de aparición tardía, tal como lo demuestra Hurtado (1984), y quedan relegadas, en la mayoría de los casos, a la escritura. Además, en la oralidad se suele sustituir "cuyo" y (P DET QU), por "que". Nuestra hipótesis es que la desaparición de la preposición, en algunos casos, y la sustitución de "cuyo" en otros, podría explicarse por Principios de Economía enunciados en el Programa Minimalista, lo que nos llevaría a establecer que habría ciertos rasgos que para el hablante son más fuertes en el cotejo y otros que son prescindibles en la medida en que las descripciones estructurales resultantes converjan en FL y FF. Por otra parte, la progresiva desaparición del "cuyo" se debería a que no coteja rasgos con el antecedente

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Two cores, Site 1089 (ODP Leg 177) and PS2821-1, recovered from the same location (40°56'S; 9°54'E) at the Subtropical Front (STF) in the Atlantic Sector of the Southern Ocean, provide a high-resolution climatic record, with an average temporal resolution of less than 600 yr. A multi-proxy approach was used to produce an age model for Core PS2821-1, and to correlate the two cores. Both cores document the last climatic cycle, from Marine Isotopic Stage 6 (MIS 6, ca. 160 kyr BP, ka) to present. Summer sea-surface temperatures (SSSTs) have been estimated, with a standard error of ca. +/-1.16°C, for the down core record by using Q-mode factor analysis (Imbrie and Kipp method). The paleotemperatures show a 7°C warming at Termination II (last interglacial, transition from MIS 6 to MIS 5). This transition from glacial to interglacial paleotemperatures (with maximum temperatures ca. 3°C warmer than present at the core location) occurs earlier than the corresponding shift in delta18O values for benthic foraminifera from the same core; this suggests a lead of Southern Ocean paleotemperature changes compared to the global ice-volume changes, as indicated by the benthic isotopic record. The climatic evolution of the record continues with a progressive temperature deterioration towards MIS 2. High-frequency, millennial-scale climatic instability has been documented for MIS 3 and part of MIS 4, with sudden temperature variations of almost the same magnitude as those observed at the transitions between glacial and interglacial times. These changes occur during the same time interval as the Dansgaard-Oeschger cycles recognized in the delta18Oice record of the GRIP and GISP ice cores from Greenland, and seem to be connected to rapid changes in the STF position in relation to the core location. Sudden cooling episodes ('Younger Dryas (YD)-type' and 'Antarctic Cold Reversal (ACR)-type' of events) have been recognized for both Termination I (ACR-I and YD-I events) and II (ACR-II and YD-II events), and imply that our core is located in an optimal position in order to record events triggered by phenomena occurring in both hemispheres. Spectral analysis of our SSST record displays strong analogies, particularly for high, sub-orbital frequencies, to equivalent records from Vostok (Antarctica) and from the Subtropical North Atlantic ocean. This implies that the climatic variability of widely separated areas (the Antarctic continent, the Subtropical North Atlantic, and the Subantarctic South Atlantic) can be strongly coupled and co-varying at millennial time scales (a few to 10-ka periods), and eventually induced by the same triggering mechanisms. Climatic variability has also been documented for supposedly warm and stable interglacial intervals (MIS 1 and 5), with several cold events which can be correlated to other Southern Ocean and North Atlantic sediment records.

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We analyzed foraminiferal and nannofossil assemblages and stable isotopes in samples from ODP Hole 807A on the Ontong Java Plateau in order to evaluate productivity and carbonate dissolution cycles over the last 550 kyr (kilo year) in the western equatorial Pacific. Our results indicate that productivity was generally higher in glacials than during interglacials, and gradually increased since MIS 13. Carbonate dissolution was weak in deglacial intervals, but often reached a maximum during interglacial to glacial transitions. Carbonate cycles in the western equatorial Pacific were mainly influenced by changes of deep-water properties rather than by local primary productivity. Fluctuations of the estimated thermocline depth were not related to glacial to interglacial alternations, but changed distinctly at ~280 kyr. Before that time the thermocline was relatively shallow and its depth fluctuated at a comparatively high amplitude and low frequency. After 280 kyr, the thermocline was deeper, and its fluctuations were at lower amplitude and higher frequency. These different patterns in productivity and thermocline variability suggest that thermocline dynamics probably were not a controlling factor of biological productivity in the western equatorial Pacific Ocean. In this region, upwelling, the influx of cool, nutrient-rich waters from the eastern equatorial Pacific or of fresh waters from rivers have probably never been important, and their influence on productivity has been negligible over the studied period. Variations in the inferred productivity in general are well correlated with fluctuations in the eolian flux as recorded in the northwestern Pacific, a proxy for the late Quaternary history of the central East Asian dust flux into the Pacific. Therefore, we suggest that the dust flux from the central East Asian continent may have been an important driver of productivity in the western Pacific.